gcleaner | 9867e4da8ee9890ca58d271c93a12829fe84adb0f11832ec9002c3564c1365f6

General

Target

9867e4da8ee9890ca58d271c93a12829fe84adb0f11832ec9002c3564c1365f6.exe
Size

295KB
MD5

5403278cf495b3f97cc5b10a212b6aab
SHA1

407a6def97230edd4cbc3f2f002dd7bbaf39132e
SHA256

9867e4da8ee9890ca58d271c93a12829fe84adb0f11832ec9002c3564c1365f6
SHA512

ab842684bfa3e659b93c2d2b9db132bb5be37bd43620562fd780ee59cd045985d62d03012df90c10a8ce30c5667a4c20e8641d8db75c444908abefcb27fcd5b9
SSDEEP

6144:m4jGfXCB5anjidxSc59ZaoGA/R8nB35q9+RASArngOS+pKT3E/Q:mlX85anjMp3FI35q9+RASArngOS+pKTG

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

C2

80.66.75.114

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 7 IoCs

pid	pid_target	Process	procid_target
464	1888	WerFault.exe	79
3824	1888	WerFault.exe	79
4764	1888	WerFault.exe	79
2716	1888	WerFault.exe	79
2120	1888	WerFault.exe	79
3612	1888	WerFault.exe	79
3420	1888	WerFault.exe	79

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9867e4da8ee9890ca58d271c93a12829fe84adb0f11832ec9002c3564c1365f6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3044	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3044	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 3540	1888	9867e4da8ee9890ca58d271c93a12829fe84adb0f11832ec9002c3564c1365f6.exe	96
PID 1888 wrote to memory of 3540	1888	9867e4da8ee9890ca58d271c93a12829fe84adb0f11832ec9002c3564c1365f6.exe	96
PID 1888 wrote to memory of 3540	1888	9867e4da8ee9890ca58d271c93a12829fe84adb0f11832ec9002c3564c1365f6.exe	96
PID 3540 wrote to memory of 3044	3540	cmd.exe	98
PID 3540 wrote to memory of 3044	3540	cmd.exe	98
PID 3540 wrote to memory of 3044	3540	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\9867e4da8ee9890ca58d271c93a12829fe84adb0f11832ec9002c3564c1365f6.exe
"C:\Users\Admin\AppData\Local\Temp\9867e4da8ee9890ca58d271c93a12829fe84adb0f11832ec9002c3564c1365f6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 772
  2⤵
  - Program crash
  PID:464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 792
  2⤵
  - Program crash
  PID:3824
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 812
  2⤵
  - Program crash
  PID:4764
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 844
  2⤵
  - Program crash
  PID:2716
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 952
  2⤵
  - Program crash
  PID:2120
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 956
  2⤵
  - Program crash
  PID:3612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 1612
  2⤵
  - Program crash
  PID:3420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "9867e4da8ee9890ca58d271c93a12829fe84adb0f11832ec9002c3564c1365f6.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\9867e4da8ee9890ca58d271c93a12829fe84adb0f11832ec9002c3564c1365f6.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3540
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "9867e4da8ee9890ca58d271c93a12829fe84adb0f11832ec9002c3564c1365f6.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1888 -ip 1888
1⤵
PID:4872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1888 -ip 1888
1⤵
PID:656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1888 -ip 1888
1⤵
PID:1860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1888 -ip 1888
1⤵
PID:756

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1888 -ip 1888
1⤵
PID:240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1888 -ip 1888
1⤵
PID:2772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1888 -ip 1888
1⤵
PID:3624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\N0IA4YT0\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/1888-1-0x0000000002F10000-0x0000000003010000-memory.dmp

Filesize
1024KB

Download
memory/1888-2-0x00000000049B0000-0x00000000049DD000-memory.dmp

Filesize
180KB

Download
memory/1888-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1888-7-0x0000000002F10000-0x0000000003010000-memory.dmp

Filesize
1024KB

Download
memory/1888-9-0x00000000049B0000-0x00000000049DD000-memory.dmp

Filesize
180KB

Download
memory/1888-8-0x0000000000400000-0x0000000002B6A000-memory.dmp

Filesize
39.4MB

Download
memory/1888-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1888-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1888-22-0x0000000000400000-0x0000000002B6A000-memory.dmp

Filesize
39.4MB

Download

Analysis

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